Abstract

A new type of chalcone crystal was prepared. Anisotropic indices with wavelength dispersion were measured by the Brewster angle method. The two largest second‐harmonic generation (SHG)tensor components were determined by the wedge method and compared with d11 of 2‐methyl‐4‐nitroaniline. Calculated collinear and noncollinear phase‐matched SHG patterns reasonably fit the observed photographs.